Method sync_from_disk

qlib/data/cache.py:820–826

(self)

            self.index_path.chmod(stat.S_IRWXU | stat.S_IRGRP | stat.S_IROTH)

        def sync_from_disk(self):
            # The file will not be closed directly if we read_hdf from the disk directly
            with pd.HDFStore(self.index_path, mode="r") as store:
                if "/{}".format(self.KEY) in store.keys():
                    self._data = pd.read_hdf(store, key=self.KEY)
                else:
                    self._data = pd.DataFrame()

        def update(self, data, sync=True):
            self._data = data.astype(np.int32).copy()